Improvement in printing-presses



^ 4- Sheets-Sheet 1. R. Nl. HOE @L S. D. TUCKER.

Printing Press.

No. 84,627. Patented De'c. 1, 1868.

4 Sheets Shet` 2. R. M. HUE & S. D. TUCKER. 'y

Printing Pess.

Patented Dec. 1, 1868.

4 Sheets-Sheet 3. A j i Printing Press.

No. 84,627.l Patented Dec. 1, 1868.

- 48h t-sh t4. 8. M. HOE 8 s. D. TUCKER. ees ee l Printing Press. No. 84,827. Patented Dec. 1. 1888.

nl: imma Ps1-Ens co.. nuova-umu., wAsnmcmn, n.41. 1

UNIT-En STATES Femme-EE RICHARD M. HOEANE STEPHEN n. TUCKER, '0E NEw'YoEK, N. Y.

. IMPROVEMENT IN 'PRINTING-PRESSES.

Specification forming part of Letters Patent No'. 84,627, dated December 1, 1868.

To lall 'whom it qay'conccm:

^ ne it known' that we, RICHARD M. Horaria STEPHEN D. TUCKER, both of vthe city, county, and State of New York, have invented certain new andl useful Improvements in Printing Machinery; and we do hereby declare that the following is a full, clear, and exact .description thereof, reference being had to the accompanying drawings, making part of vthis speciiioation, in which- Figure 1` is an elevation of the front of the machine; Fig. 2, an elevation of the back;

Fig. 3, a vertical section in a plane parallel to the plane of Figs. 1 and 2, andrepresenting by dotted lines the mechanism beyond the feeding-in cylinder; Fig. 4, a face view of one 'of the type-'cylinders with. the stereotypealternately from the, 'opposite feeding-tables and presenting them in rapid succession to the impression-cylinder.

'We will first describe the construction and operation-of this part of our said invention as we have found it best to construct it.

In Figs. 1, 2 and 3 of the drawings, a and b represent two inclined feeding-tables, on which the sheets of paper are to be placed, and from which they are successively -presented, by boys or other attendants, to the feeding-in cylinder. The lower end of the upper feeding-table, a., is just above and that ot' table b j ust below the feeding-in cylinder c. They are to be provided with the usual means to enable the attendant to present the lower edge of each sheet to the proper place to be taken by the mechanism.

The feeding-in cylinder c is of the usual construction, and receives motion fromthe main shaft d by the train of cog-wheels of g. It is provided in the usual manner with gripingfingers h, projecting from a shaft, i, mounted in a recess made 4for that purpose, and one end of the said gripershaft projects beyond one end of the cylinder, and is provided with a wing and 'cranl'rpi1x, j,'which are actuated Vby the mechanism k, mounted in thev side frame,

to tunn it when the griping-flngersare turned in one direction to gripe the edge of a sheet of paper against the surface of the cylinder, and then in the opposite direction vto liberate This mechanism lc is of the usual and wellknown construction heretofore used; but that part of it for closing the fingers is duplicated, thev two sets being represented at K K, one set being above and the other below the shaft of the feeding-in cylinder c, one set to operate the ngers for taking the sheets from the upi per and theother for taking the sheets from the lower feeding-table.

The machine being in operation', a sheet of paper on the feeding-table a is moved down by the attendant to the proper gage, so that its lower edge will'be in the required Vposition `to be griped by the fingers of the feeding-in cylinder. So soon as griped, thel sheet is carried around and presented to the impression cylinder No. 1, which is on the shaft of the cog-wheel f, and receives motion from the main shaft by the cog-wheel e. This cylinder is provided, as in the usual manner, with gripingngers l, operated in the usual manner, andwhich gripe the same edge of the sheet as it is liberated by the griping-ngcrs of the feeding-in cylinder.

The sheet of paper thus transferred is presented to the type-cylinder A, No. and re ceives the required impression on one surface, and while it is being so printed it continues to be held tothe surface of the impression cylinder No. 1 until the self-same edge is carried up and presented to and griped to the surface of the impression-cylinder No. 2 by its griping-ingers on, at the same time that it is liberated by the griping-ngers l of the im pression-cylinder No. 1.

The impression-cyiinder No. 2 is constructed in all respects like No. l, and is providedin like manner with gripin g-fln gers. It is turned with equal velocity, but in the reverse direct'ion, by the cog-wheel n on its shaft, which receives motion from the cog-wheel f on the shaft of the impression-cylinder No. 1. That;

end of the sheet of paper which isV not griped is held up by tapes against-the underside of the impression-cylinder No. 1 as it is passing to the cylinder No. 2. These tapes will be hereafter described.

The sheet ot1 paper, by being thus transferred from impression-cylinder N o. l to No. 2 is reversed, so that the. surface which has been printed is in contact with the surface of impression-cylinder No. 2, and its unprinted surface outside, and that is in succession preen-ted to and printed by the type-cylinder A',

The type-cylinder A, No. 1, receives motion from impression-cylinder No. 1 by cog-wheels jf and o, and the type-cylinder A, No. 2, from impression-cylinder No. 2 by the cog-wheels n and p. The surfaces of all four of these cylinders travel at the same speed, and in the directions indicated by'the arrows in Fig. 3.

After this sheet of paper has been printed 'on the second surface by the type-cylinder A,

No. 2,.it is to be carried ott' and delivered, which operation will be'presently described.

While the first sheet of paper is being printed on one side and delivered by the impression-cylinder No. 1 to the impressioncyl inder No, 2, as above described, a second sheet of paper is presented on the feeding-table b, as described with reference to the first sheet on the feeding-.table a, so that, at the next operation, the griping-lingers of the feeding-in cylinder, instead of being operated when opposite the lower end of the feeding-table a, are operated when they come opposite the lower kedge of the lower feed-table, b, from which they take the second sheet, which is in turn presented to and taken by the fingers of the impression-cylinder No. 1 at the beginning of the second revolution of' that cylinder, carried around to be printed on one surface by the type-cylinder A, No. 1, presented to the impression-cylinder N o. 2, and -the reverse A side presented by it to the type-cylinder A,

No. 2, to be printed, and then delivered, as before.

Inthe manner above described, the sheets of paper are taken alternately from the two feeding-tables by thesame feeding-iu mechanism, so that the machinery can be carried at the desired velocity to print on both" sides as fast as the sheets can be presented by the at tendants on two feeding-tables.

The type-cylinders are to be provided with the usual or other suitable inking apparatus,

not necessary to be described.

The sheets of paper will be delivered from such a printing-machine too rapidly to be laid in one pile by the mechanism usually employed for that purpose, and known as the 1iy,7 as such mechanism has' been heretofore applied.

rlhe second part of our invention relates to the more rapid delivery of ,the printed sheets; and this part of our said invention consists of a mechanism by which the sheets, as they come from the printing. mechanism, are directed alternately on opposite sides, so as to be delivered in two piles, alternately on one and` then on the other side, eitherlby two separate ily-frames, or, as the equivalent thereof, a double-acting {1y-frame.

Still referring to the same drawings, fand r representtwo parallel shafts, which are rotated in opposite directions 'by pnins s and t \roller, w, at one end-of the frame, and thence upward over a second guide-roller, y, near the top of the frame; thence Punder and around a third guide-rellena, to and overa fourth guideroller, a; thence down to and under a fifth guide-roller, b', just above and a little back of the roller before described; then backto the series of pulleys u, passing under a sixth guide-roller, c, near the pulleys u.

Just below the series of pulleys u there isa corresponding range of pulleys, dl, on a loose shaft, and .these pulleys carry another series of tapes, el, which pass from the vtop of the ,pulleys d1 toand. under the tapes w, where they pass under the guide-rollers, thence up over the guide-roller y, `down to and under a series of pulleys, f1, back to the series of pulleys d.'

A sheet of paper being delivered between the two series of tapes w and el at the bight of the two series of pulleys u and d* will be carried along, in nearly a horizontal direction, between the-two series of tapes, to and under the guide-roller .'1:, thence, nearly 'in a vertical direction, to and over the guide-roller y,' over to the front ofthis roller, where the series. of' tapes 1li-leaves it to return, and it will then descend in nearly a vertical direction in front of the series of tapes e, and in front of the iy-frame, so that, at the instant the upper end of the sheet is liberated in front by the series of tapes fw it can be thrown down onto the pile by the fly-frame. i v

At the other end of the frame there is a like arrangement of pulleys, tapes, and vguide-rollers, to carry and deliver sheets of paper in the opposite direction.

These corresponding duplicate -parts are indicated on the drawings by corresponding letters, which are marked 2 to designate them from the parts above described.

Some of the series of tapes marked 102 on this end of the machine, instead of being arranged as the others ofthe series, or like the tapes w at the end of the machine already described, are made of greater length, and pass from the sixth guide-roller, c2, under and around a portion ofthe impression-cylinder No. 1, to hold up the sheets of paper and prevent them.from falling from the impressioncylinder before being effectually transferred. From this they pass over and around the imall.

. pression-cylinder No. 2andthence down to the series of pulleys 'v on shaft r,before described. y 1 v These tapes of the series w2 are marked w3, to distinguish them from the rest of the series.

Where they pass around the impressioni cylinder No. l, they vare outside of the sheet tween the two series of pulleys u and 'v on the Y shafts q and r.

And as the sheets of paper are to be' .delivered alternatelyin opposite directions, when they enter the space between the pulleys u and'v, to be carried to one end between the two series of tapes w and el, or to theopposite end, between the two series 2v2 and e, the ends of the sheetsare to be pushed alternately in oppositedirections.

For this purpose there is a horizontal rockshaft, g1, just below the shafts g and'r, and in a plane perpendicnlarly between them. i

From this shaft projects upward a series of guide-rods, It', which play in the spaces between the pulleys'uand c.

On the outer end of the shaft g" there is an arm, il, the upper end of which is in a cam- The upper end of the guide-rods is spear-A shaped, so that when' thrown in onedirection between the pulleys of the series 'u they will form guides to direct the sheet of paper between the two series of tapes zu and e2, and

Lwhenvibrated in the opposite direction they will guide the sheet of paper to and between the two series of tapes 'w and el. In this-way the sheets of paper are taken and alternately delivered in opposite directions.

At each end of the frame there is a rock- 'shaft, n', with a series of parallel rods, o',

which constitute the ily-frames.

Both these shafts are represented in the aceompanyin g drawings; but only one of the flyframes and appendages is represented, as one is but the repetition of the other.v

When at rest, the rods of the fly-frame are in a nearly vertical position, and alittle back of the series of tapese2,where these are nearly in a vertical position, and as soon as the sheet of paper is liberated by the series of tapes w2 it is struck by the rods olv of the ily-frame, and` thereby thrown down and onto a pile.

The fly-frame is drawn up by a cam, p', on the end of the longitudinal shaft k', whichV acts on an arm, ql, at one end of the rockshaft, vthe vcam being so formed as to hold up the ily after lifting it, and until a sheet is to be delivered, and then the cam passes the'arni g and permits the fly to be thrown out by a` spring, r', on a rod, 8.', which is connected with`- the crank-pin of an arm, t', on the end of the rock-shaft n. i

The cams at the two opposite ends of the shaft 7c are to be so placed that they will alternate the operations of the twoy-frames.

* The third part of our said invention relatesto means for'securin g stereotype or other solid printing plates or surfaces directly to the surface ofthe type-cylinders of printing-machines, by means of which we are enabled to dispense with the Ause of the blocksiand iron frames v heretofore employed for this purpose, and avoid y the serious-inconveniences experiened in theuse of them. p

Referring to Figs 3, 4, and 5 of the'accompanyin g drawings, longitudinal and transverse grooves aaand b3 are formed in the periphery of printing-cylinders. These grooves are dovetailed, and to them are fitted counterclamp blocks c3 and d3, so as to slide therein. The stereotype or other printing plates e3, curved so that their inner surfaces will lit the periphery ofthe printing-cylinders, are formed with their outer edges beveled from the outside or printing-surface, as represented atf3. The plates so prepared are placed in the re-t quired positions on the periphery ofthe printing -vcylinder, and there clamped by outer clamping -blocks, g3, by means 'of screws t3,

which pass through the outer clamping-blocks,

'and which are tapped into the eounter-clamping blocks. l y

The outer clamping blocks, at the outer edges of the outer plates, are prevented from yielding outward when clamping the beveled edges of the plates by screws js, which are tapped into the counter-clamping blocks and bear against the cylinder, and their heads are .tt d to semicircular recesses in the outer ends of t 1e clamping-blocks.

As the two series of counter-clamping blocks are fitted to .slide in two series of grooves which are at right angles to each other, and the outer clamping-blocks are fastened to these, it follows that they can be adjusted in position to clamp plates of any size directly to the surface of the cylinder, for when the outer and the counterclamping blocks are drawn together by the screws the outer blocks are drawn to the counter-blocks and tothe 'outer beveled faces of the edges of lthe plates,

nately from the opposite feeding-tables and scribed,for clamping stereotype or other `printconducting them to the impression-cy1inder, ing plates directly to the surface of a type subsnautnfllyas and for the purpose described. cylinder, as set frth. Y

2. Separating the sheets by mechanism sub- RICHD. M. HOE. stantially as described,so that they will be de- STEPHEN D. TUCKER. livered in files, substantially as set; forth and Witnesses: specified. A ANDREW DE LACY,

3. The means, substantially as herein de NVM. H. BISHOP. 

